<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			.group_1 form{
				width: 502px;
				height: 302px;
				border: 1px solid #000000;
				position: fixed;
				left: 50%;
				top: 50%;
				margin-top: -151px;
				margin-left: -251px;
				padding: 5px;
				z-index: 9999;
				background: white
			}
			.ma{
				width: 240px;
				height: 28px;
				margin-bottom: 30px;
			}
			.group label{
				float: left;
				width: 100px;
				text-align: right;
			}
			h3{
				
				background: #90ee90;
				width: 502px;
				line-height: 40px;
				text-indent: 2em;
				text-align:20px;
				margin: 0px;				
			}
			.group1{
				margin-left: 100px;
				height: 28px;
				width: 100px;
			}
			.group2{
				margin-left: 2px;
				height: 28px;
				width: 100px;
			}
			.b22{
				position: fixed;
	            width:100%;
	            height:100%;
	            left:0px;
	            top:0px;
	            background:#000;
	            opacity:0.3;
	            z-index:9998
			}
		</style>
	</head>
	<body>
		<div class="group_1">			
					
			<form action="" method="post">
				<h3>用户登陆</h3>
				<p class="group">
					<label>用户名：</label><input type="text" name="user" class="ma"/><br />
					<label>密码：</label><input type="password"class="ma"/>				
				</p>
				<p >
					<input type="submit" value="提交" class="group1"/>
					<input type="reset" value="重置" class="group2"/>
				</p>
			</form>	
			<div class="b22"></div>
		</div>
	</body>
</html>
